Ultra-precision raster grinding biconical optics with a novel profile error compensation technique based on on-machine measurement and wavelet decomposition

On-machine error compensation (OMEC) is efficient at improving machining accuracy without increasing extra manufacturing cost, and involves the on-machine measurement (OMM) of machining accuracy and modification of program code based on the measurement results. As an excellent OMM technique, chromatic confocal sensing allows for the rapid development of accurate and reliable error compensation technique. The present study integrated a non-contact chromatic confocal probe into an ultra-precision machine for OMM and OMEC of machined components. First, the configuration and effectiveness of the OMM system were briefly described, and the relevant OMEC method was presented. With the OMM result, error compensation software was then developed to automatically generate a modified program code for error compensation. Finally, a series of cutting experiments were performed to verify the validity of the proposed OMEC method. The experimental results demonstrate that the proposed error compensation method is reliable and considerably improves the form error of machined components.

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Profile error compensation in ultra-precision grinding of aspheric surfaces with on-machine measurement

International Journal of Machine Tools and Manufacture ◽

10.1016/j.ijmachtools.2010.01.001 ◽

2010 ◽

Vol 50 (5) ◽

pp. 480-486 ◽

Cited By ~ 114

Author(s):

F.J. Chen ◽

S.H. Yin ◽

H. Huang ◽

H. Ohmori ◽

Y. Wang ◽

...

Keyword(s):

Error Compensation ◽

Precision Grinding ◽

Profile Error ◽

Aspheric Surfaces ◽

Ultra Precision

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One-Point Nano-Grinding for Micro-Aspherical Glass Lens Mould

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.97-101.4217 ◽

2010 ◽

Vol 97-101 ◽

pp. 4217-4220 ◽

Cited By ~ 3

Author(s):

Shao Hui Yin ◽

Yu Wang ◽

Yu Feng Fan ◽

Yong Jian Zhu ◽

Feng Jun Chen ◽

...

Keyword(s):

Experimental Study ◽

Error Compensation ◽

Grinding Process ◽

Form Error ◽

Precision Grinding ◽

Aspherical Lens ◽

Ultra Precision ◽

Compensation Technique ◽

Glass Lens ◽

Micro Lens

This paper reported an experimental study on ultra-precision grinding for micro aspherical lens mould. One-point grinding mode and inclined axis grinding mode are employed and investigated in grinding process. Grinding test of a micro-lens mould using form error compensation technique is conducted. The experimental results show that ground micro aspheric mould surfaces with form (PV) around 0.122 µm and a roughness (Ra) less than 2 nm is achieved successfully.

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Ultra-precision Single-point Grinding Technique and Profile Error Compensation Method for Machining Aspheric Mould

Journal of Mechanical Engineering ◽

10.3901/jme.2010.23.186 ◽

2010 ◽

Vol 46 (23) ◽

pp. 186 ◽

Cited By ~ 1

Author(s):

Fengjun CHEN

Keyword(s):

Error Compensation ◽

Single Point ◽

Compensation Method ◽

Profile Error ◽

Ultra Precision ◽

Grinding Technique

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Data-path and memory error compensation technique for low power JPEG implementation

2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) ◽

10.1109/icassp.2011.5946800 ◽

2011 ◽

Cited By ~ 3

Author(s):

Yunus Emre ◽

Chaitali Chakrabarti

Keyword(s):

Low Power ◽

Error Compensation ◽

Data Path ◽

Memory Error ◽

Compensation Technique

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A Dynamic Phase Error Compensation Technique for Fast-Locking Phase-Locked Loops

IEEE Journal of Solid-State Circuits ◽

10.1109/jssc.2010.2046235 ◽

2010 ◽

Vol 45 (6) ◽

pp. 1137-1149 ◽

Cited By ~ 48

Author(s):

Wei-Hao Chiu ◽

Yu-Hsiang Huang ◽

Tsung-Hsien Lin

Keyword(s):

Error Compensation ◽

Phase Error ◽

Phase Locked Loops ◽

Dynamic Phase ◽

Compensation Technique

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Off-line error compensation in corner milling process

Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture ◽

10.1177/0954405416666901 ◽

2016 ◽

Vol 232 (7) ◽

pp. 1172-1181 ◽

Cited By ~ 7

Author(s):

Caixu Yue ◽

Xianli Liu ◽

Yunpeng Ding ◽

Steven Y Liang

Keyword(s):

Cutting Force ◽

Error Compensation ◽

Tool Path ◽

Chip Thickness ◽

Milling Process ◽

Process Conditions ◽

Force Model ◽

Tool Deflection ◽

Profile Error ◽

Compensation Algorithm

Tool deflection induced by cutting force could result in dimensional inaccuracies or profile error in corner milling process. Error compensation has been proved to be an effective method to get accuracy component in milling process. This article presents a methodology to compensate profile errors by modifying tool path. The compensation effect strongly depends on accuracy of the cutting force model used. The mathematical expression of chip thickness is proposed based on the true track of cutting edge for corner milling process, which considers the effect of tool deflection. The deflection of tool is calculated by finite element method. Then, an off-line compensation algorithm for corner profile error is developed. Following the theoretical analysis, the effect of the error compensation algorithm is verified by experimental study. The outcome provides useful comprehension about selection of process conditions for corner milling process.

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